Home / 118,378.77-163,360.65-64,662.40

Finding the Fourth Proportional to 118,378.77, 163,360.65 and 64,662.40

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Solution

The fourth proportional to 118,378.77, 163,360.65 and 64,662.40 is: 89,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,378.77 : 163,360.65 = 64,662.40 : x
  2. Step 2: Convert to fraction form
    118,378.77/163,360.65 = 64,662.40/x
  3. Step 3: Cross multiply
    118,378.77x = 163,360.65 × 64,662.40
  4. Step 4: Simplify right side
    118,378.77x = 10,563,291,777.52
  5. Step 5: Solve for x
    x = 10,563,291,777.52/118,378.77
  6. Step 6: Final answer
    x = 89,232.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.